INTERDIGITAL INC

Ticker: IDCC CUSIP: 45867G101 Class: EQTY

Costello Asset Management, INC's Holding History (CIK: 0001760145)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 100 Value ($000) $32 Avg Close $353.55 Range $314.37 - $412.60

Q3 2025

Shares 100 Value ($000) $35 Avg Close $271.66 Range $213.06 - $360.30

Q2 2025

Shares 100 Value ($000) $22 Avg Close $211.87 Range $180.60 - $237.50

Q1 2025

Shares 100 Value ($000) $21 Avg Close $201.31 Range $169.58 - $231.97

Q3 2020

Shares 40 Value ($000) $2 Avg Close $60.07 Range $54.62 - $67.06

Q2 2020

Shares 40 Value ($000) $2 Avg Close $53.16 Range $41.61 - $62.66

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	100	$32	$353.55	$314.37 - $412.60
Q3 2025	100	$35	$271.66	$213.06 - $360.30
Q2 2025	100	$22	$211.87	$180.60 - $237.50
Q1 2025	100	$21	$201.31	$169.58 - $231.97
Q3 2020	40	$2	$60.07	$54.62 - $67.06
Q2 2020	40	$2	$53.16	$41.61 - $62.66